JSON reading in python

Question

I am using python 2.7 .I am creating 3 lists (float values (if it matters at all)), i am using json object to save it in a file.

Say for eg.

L1=[1,2,3,4,5]
L2=[11,22,33,44,55]
L3=[22,33,44,55,66]
b={}
b[1]=L1
b[2]=L2
b[3]=L3
json.dump(b,open("file.txt","w"))

I need to read these values back from this "file.txt" into the 3 list. Can anyone please point me to the resource? How do i proceed with retrieving these values?

Possible duplicate of stackoverflow.com/questions/8730119/… — Tanveer Alam
– Tanveer Alam, Commented Nov 3, 2014 at 8:47

Community · Accepted Answer · 2017-05-23 11:57:45Z

2

try

content = json.load(open('file.txt'))

or using a the with context manager to close the file for you:

with open('file.txt') as f:
    content = json.load(f)

Also, read the library's documentation

edited May 23, 2017 at 11:57

CommunityBot

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answered Nov 3, 2014 at 8:48

Reut Sharabani

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1 Comment

SeasonalShot Over a year ago

Yes, the Documentation really helped.

SeasonalShot · Accepted Answer · 2014-11-03 08:57:48Z

0

I used this following code:

import json
path=r"file.txt"
for line in open(path):
    obj = json.loads(line)

x=obj['1']
y=obj['2']
z=obj['3']

Now, i will have the List L1 in x, L2 in y and L3 in z

answered Nov 3, 2014 at 8:57

SeasonalShot

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